Nut-lock.



NB. 7l6,395. Patented Dec. 23, 1902.

P. K. EBERSOLE.

NUT LOCK. (Application filed July 23, 1902.)

(No Model.)

lllllllililiigggg l l/l/l/ WITNESSES INVENTbR W QKM ATTORNEY.

? a uoams Pmns 110.. PHOTQ-LITHKL. wpmuown u c UNTTED STATES PATENTOFFICE.

PETER K. EBERSOLE, OF CONOY TOWNSHIP, PENNSYLVANIA, ASSIGNOR ()FONE-HALF TO ISAAC WV. HOFFMAN, OF ELIZABETHTOWN, PENNSYL- VANIA.

NUT-LOCK.

.-.PECIFICATION forming part of Letters Patent No. 716,395, datedDecember 23, 1902.

Application filed July 23, 1902. Serial No. 116,619. (No model.)

T0 at whont it may concern:

Be it known that 1, PETER K. EBERSOLE, a citizen of the United States,and a resident of Gonoy township, in the county of Lancaster and Stateof Pennsylvania, have invented certain Improvements in NutLocks, ofwhich the following is a specification.

This invention relates to improvements in that class of devices designedto prevent the voluntary loosening of nuts on bolts, applying moreparticularly to the locking of nuts on the bolts securing the parts of arailwaytrack; and the object of this invention is to secure bolt-nuts bya lock held in place by a yielding device that wili hold it in anoperative position and at the same time permit it to be readily removed.

The invention consists in the construction and combination of thevarious parts, as hereinafter fully described and then pointed out inthe claims.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation showing a nut-lock embodying my inventionapplied to the rails of a track; Fig. 2, a top plan view of the same,the head of the rails being shown cut away; Fig. 3, a top perspectiveview of the joint between the rails and of an end of the nut-lock; Fig.4, a transverse section on broken line 4 4 of Fig. 3; Fig. 5, aperspective view of thelocking-plate, and Fig. 6 a perspective view of akey for detaching the clamp-plate. Fig. 7 is a perspective view of asection of a modified form of the clamp-plate.

Similar numerals indicate like parts throughout the several views.

Referring to the details of the drawings, 1 indicates the rails; 2, thefish-plate; 3, the bolts, and a the nuts. These nuts 4 when screwed homeare secured in place by a locking-plate 5. Locking-plate 5 bears againstthe fish-plate and has therein recesses or notches 6, adapted to takearound and prevent the turning of the nuts on the bolts On each end oflocking-plate 5 is an outwardly-extending lip 7, through which is aperforation 8, wherethrough passes the stem 9 of a hook 10. On the innerend of each stem 9 is a coiled 5o spring 11, having the inner end 12engaging a hole in the inner end of said stem and the outer end engagingthe inside face of lip 7. Hook 10 has thereon a shoulder 13, that bearsagainst the outer face of lip 7 and limit-s the action of spring 11.From lip 7 hook 10 curves inward, then parallel with the rail, as shownat 14, and finally'embraces the shoulder formed by the end of thefish-plate, as seen at 15.

In Fig. 7 is shown a modified form of the locking -plate, whereinopenings 16 are out through the body thereof.

In operation the hook at one end of the locking-plate is engaged withthe end of the fish-plate. The locking-plate is then pulled against thetension of the spring on the stem of that hook until the openings insaid locking-plate engage the nuts 4, when the hook at the other end ofthe locking-plate is engaged with the corresponding end of thefish-plate. To detach the locking-plate, the key or lever 17(illustrated in Fig. 6) is inserted in the space at one end of saidlocking-plate, formed by the inward curve of hook 10, as shown in Fig.3.

I do not confine myself to the details of construction herein shown anddescribed, as it is obvious that many alterations may be made in thesame without departing from the principle and scope of my invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a nut-lock, the combination, with a bolt, of a shoulder in fixedrelation to the bolt, a locking-plate, engaging a nut on the bolt, ahook engaging the shoulder, a stem on the hook and extending over thelockingplate, and a resilient connection between the locking-plate andsaid stem, for the purpose specified.

2. In a nut-lock, the combination, with a bolt, of a shoulder in fixedrelation to the bolt, a locking-plate engaging a nut on the bolt, a lipon the locking-plate, a hook engaging the shoulder, a stem on the hookand passing loosely through an opening in said lip, and a springconnected with the stem and bearing against the lip, for the purposespecified.

3. In a nut-lock, the combination, with a plurality of bolts, ofshoulders on opposite sides of said bolts and in fixed relation thereto,a locking-plate engaging the nuts on the bolts, lips on the ends of thelocking-plate, hooks engaging the shoulders and having stems passingloosely through the lips of the locking-plate, and springs on said stemsand adapted to exert inward tension on the hooks, for the purposespecified.

4. In a nut-lock, the combination, with a fish-plate, of a locking-plate5 having openings therethrough adapted to take over a series ofbolt-nuts, perforated lips 7 on the ends of the locking-plate, hooks 10comprising PETER K. EBERSOLE.

-Witnesses:

O. S. HOFFMAN, H. T. SHULTZ.

